DELTA DOP-B-FX | DB9F to MD8 RS-422 HMI-to-PLC Communication Cable — 3M
The DOP-B-FX is a dedicated RS-422 communication cable for connecting a Delta DOP-B Series HMI to a Mitsubishi FX Series PLC. It enables real-time HMI control and monitoring of Mitsubishi FX PLCs via the Delta DOPSoft environment.
2️⃣ Key Features
- DB9 Female (9-pin D-Sub) on HMI side — connects to Delta DOP-B HMI RS-232/422 COM port
- MD8 / Mini-DIN 8-Pin (Male) on PLC side — connects to Mitsubishi FX Series RS-422 programming port
- RS-422 protocol — standard for Mitsubishi FX HMI communication
- 3-metre cable — standard control panel installation length
- OEM compatible — built to DOP-B-FX specification
3️⃣ Technical Specifications
| Cable Model |
DOP-B-FX / DOP-FX |
| Cable Length |
3 Metres (3M) |
| Interface — HMI Side |
DB9 Female (9-pin D-Sub) |
| Interface — PLC Side |
MD8 / Mini-DIN 8-Pin (Male) |
| Protocol |
RS-422 |
| Condition |
OEM Compatible — New (no retail box) |
4️⃣ Compatible Devices / Models
- Delta DOP-B Series HMI (DB9 COM port side)
- Mitsubishi FX Series PLCs with MD8F socket: FX1N, FX2N, FX3U and FX series variants
⚠️ Always verify the exact port type and model number on your device before ordering.
5️⃣ Typical Use Cases
- Real-time HMI process visualization and control of Mitsubishi FX PLCs via Delta DOP-B panel
- DOPSoft HMI screen linked to Mitsubishi FX PLC data registers
6️⃣ Package Contents
- 1× Delta DOP-B-FX HMI-to-PLC Communication Cable, DB9F to MD8, 3M (OEM Compatible — New)
7️⃣ Warranty
- 90-day replacement warranty
- Covers manufacturing defects; physical damage and improper installation not included
8️⃣ Additional Notes
- OEM compatible — not a Delta-branded retail unit.
- Protocol is RS-422 — different from the DOP-DVP cable which uses RS-232. Confirm your HMI communication port setting before use.
- Use Mitsubishi FX Series communication protocol in DOPSoft HMI driver settings.